I want to add intent in sliding view pager. As I click different pages of the sliding view pager, a different activity must be called but I can't find the solution.
I have added image text and description in the view pager and a button is there in the layout
I think this would involve the use of page selected but earlier when I used onpageselected by using the position it opens up the page even if we are not clicking but I want to use intent here.
Adapterclass
package com.android.msahakyan.expandablenavigationdrawer.adapter;
import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.support.v7.widget.CardView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.msahakyan.expandablenavigationdrawer.R;
import com.android.msahakyan.expandablenavigationdrawer.fragment.CardAdapter;
import com.android.msahakyan.expandablenavigationdrawer.fragment.CardItemString;
import java.util.ArrayList;
import java.util.List;
/**
* Created by tanis on 21-06-2018.
*/
public class CardPagerAdapterS extends PagerAdapter implements CardAdapter {
private List<CardView> mViews;
private List<CardItemString> mData;
private float mBaseElevation;
public CardPagerAdapterS() {
mData = new ArrayList<>();
mViews = new ArrayList<>();
}
public void addCardItemS(CardItemString item) {
mViews.add(null);
mData.add(item);
}
public float getBaseElevation() {
return mBaseElevation;
}
#Override
public CardView getCardViewAt(int position) {
return mViews.get(position);
}
#Override
public int getCount() {
return mData.size();
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view == object;
}
#Override
public Object instantiateItem(ViewGroup container, int position) {
View view = LayoutInflater.from(container.getContext())
.inflate(R.layout.adapter, container, false);
container.addView(view);
bind(mData.get(position), view);
CardView cardView = (CardView) view.findViewById(R.id.cardView);
if (mBaseElevation == 0) {
mBaseElevation = cardView.getCardElevation();
}
cardView.setMaxCardElevation(mBaseElevation * MAX_ELEVATION_FACTOR);
mViews.set(position, cardView);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
mViews.set(position, null);
}
private void bind(CardItemString item, View view) {
TextView titleTextView = (TextView) view.findViewById(R.id.titleTextView);
TextView contentTextView = (TextView) view.findViewById( R.id.contentTextView);
ImageView imageView=(ImageView) view.findViewById( R.id.image12 ) ;
titleTextView.setText(item.getTitle());
contentTextView.setText(item.getText());
imageView.setImageResource( item.getImages() );
}
}
FragmentAction
package com.android.msahakyan.expandablenavigationdrawer.fragment;
import android.content.Context;
import android.content.Intent;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.Fragment;
import android.support.v4.content.res.ResourcesCompat;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
//import android.support.v7.widget.LinearLayoutManager;
//import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import com.android.msahakyan.expandablenavigationdrawer.R;
import com.android.msahakyan.expandablenavigationdrawer.Registration;
import com.android.msahakyan.expandablenavigationdrawer.adapter.CardPagerAdapterS;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;
import in.goodiebag.carouselpicker.CarouselPicker;
import technolifestyle.com.imageslider.FlipperLayout;
import technolifestyle.com.imageslider.FlipperView;
/**
* A simple {#link Fragment} subclass.
* Use the {#link FragmentAction#newInstance} factory method to
* create an instance of this fragment.
*/
public class FragmentAction extends Fragment {
ViewPager mViewPager;
CardPagerAdapterS mCardAdapter;
ShadowTransformer mCardShadowTransformer;
private Context context;
ViewPager viewPager;
String titlesText [] = {" Website Design", " Digital Marketing", " Domain Registration", "Graphics Design", " Mobile Apps", " Server Hosting",
" Software Development", " Content Marketing", " Security (SSl)"};
String detailsArray [] = {
"Your website is your digital home. We create, design, redesign, develop, improvise, and implement. We make beautiful websites",
"We help your business reach potential customers on every possible digital device through all possible media channels ",
"To launch your website the first thing you need is the domain name. You can choose your domain name with us here ",
"We generate creative solutions and can create a wide range of graphic for your clients which match their business ",
"We are mobile. And we make you mobile. We make responsive websites and mobile apps which compliment your business ",
"When you are hosting your website in the India you will benefit from a higher ping rate and lowest latency ",
"Our team is competent at coding web apps with keen attention to detail & intuitive functionality that is high on design & creativity",
"Content is the heart of your digital presence. We create the right content with the right focus for your business",
"Secure your site with the world's leading provider of online security and get these exclusive features at no added cost",
};
int[] images = {R.drawable.website_design, R.drawable.digita,R.drawable.domain_registration,R.drawable.graphic,
R.drawable.mob,R.drawable.server,R.drawable.software_development,R.drawable.ontent,R.drawable.ssl};
private static final String KEY_MOVIE_TITLE = "key_title";
public FragmentAction() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment.
*
* #return A new instance of fragment FragmentAction.
*/
public static FragmentAction newInstance(String movieTitle) {
FragmentAction fragmentAction = new FragmentAction();
Bundle args = new Bundle();
args.putString(KEY_MOVIE_TITLE, movieTitle);
fragmentAction.setArguments(args);
return fragmentAction;
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
View v = inflater.inflate(R.layout.fragment_action,container,false);
TextView txt = (TextView)v.findViewById( R.id.textView12 );
txt.setText("\u25BA Creative & Dedicated Team");
TextView txt1 = (TextView)v.findViewById( R.id.textView13 );
txt1.setText("\u25BA Affordable Cost");
TextView txt2 = (TextView)v.findViewById( R.id.textView14 );
txt2.setText("\u25BA Maintain Long Relationship");
TextView txt3 = (TextView)v.findViewById( R.id.textView15 );
txt3.setText("\u25BA Timely Deliverly ");
context = this.getContext();
mViewPager = (ViewPager)v.findViewById(R.id.viewpager1);
mCardAdapter = new CardPagerAdapterS();
for (int i=0; i<titlesText.length; i++){
mCardAdapter.addCardItemS(new CardItemString( titlesText[i], detailsArray[i],images[i]));
}
mCardShadowTransformer = new ShadowTransformer(mViewPager, mCardAdapter);
mViewPager.setAdapter(mCardAdapter);
mViewPager.setPageTransformer(false, mCardShadowTransformer);
mViewPager.setOffscreenPageLimit(3);
viewPager = (ViewPager)v.findViewById( R.id.viewpager );
ViewPagerAdapter viewPagerAdapter = new ViewPagerAdapter( this.getContext() );
viewPager.setAdapter( viewPagerAdapter );
Timer timer = new Timer( );
timer.scheduleAtFixedRate( new Mytime(),2000,4000 );
FloatingActionButton floatingActionButton = (FloatingActionButton)v.findViewById( R.id.floatingActionButton );
floatingActionButton.setOnClickListener( new View.OnClickListener() {
#Override
public void onClick(View view) {
startActivity( new Intent( getActivity(),Registration.class ) );
}
} );
return v;
}
public class Mytime extends TimerTask{
#Override
public void run() {
getActivity().runOnUiThread( new Runnable() {
#Override
public void run() {
if(viewPager.getCurrentItem() == 0) {
viewPager.setCurrentItem( 1 );
}
else if (viewPager.getCurrentItem()== 1){
viewPager.setCurrentItem( 2 );
}
else if (viewPager.getCurrentItem()== 2){
viewPager.setCurrentItem( 3 );
}
else if (viewPager.getCurrentItem()== 3){
viewPager.setCurrentItem( 4 );
}
else {
viewPager.setCurrentItem(0);
}
}
} );
}
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
Drawable movieIcon = ResourcesCompat.getDrawable(getResources(), R.drawable.webdesign, getContext().getTheme());
String movieTitle = getArguments().getString(KEY_MOVIE_TITLE);
}
}
first of all onPageSelected listener is not really good idea in this case, because it is invoked every time when viewpager' current position changes (it's good for setting toolbar title, for example).
You can add another collection for Activities which can be invoked in CardPagerAdapterS, for example:
....
private List<CardItemString> mData;
private List<Class<? extends Activity> mActivities;
and use them to create click listener in order to open activities:
#Override
public Object instantiateItem(ViewGroup container, int position) {
View view = LayoutInflater.from(container.getContext())
.inflate(R.layout.adapter, container, false);
container.addView(view);
bind(mData.get(position), view);
CardView cardView = (CardView) view.findViewById(R.id.cardView);
if (mBaseElevation == 0) {
mBaseElevation = cardView.getCardElevation();
}
cardView.setMaxCardElevation(mBaseElevation * MAX_ELEVATION_FACTOR);
cardView.setOnCLickListener(v-> {
context.startActivity(new Intent(context, mActivities.get(position));
});
mViews.set(position, cardView);
return view;
}
Related
This is my first Q on the site, I'll try to form it well.
I have a recyclerView, and the Item is an array of buttons.
Button click shows a popup menu that allows the user to change the color of the button.
I've managed to set that the onClick method will change the color, but I'm clueless about how to save the chosen color in the ButtonArrayList, that Holds the colors.
The problem is that when the button is pressed, I don't know how to understand programatically on which button, in which button array it was pressed.
Thanks!
Just to demonstrate the problem. when button is clicked, How to identify which button of which item was clicked?
1
The code of the fragment:
package com.examples.recyclerViewWithButtonArray;
import android.os.Build;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import java.util.LinkedList;
/**
* A simple {#link Fragment} subclass.
* Use the {#link Game#newInstance} factory method to
* create an instance of this fragment.
*/
public class Game extends Fragment {
// TODO: Rename parameter arguments, choose names that match
protected static int[] mButtonsColors;
private final LinkedList<ButtonArray> mButtonArrayList = new LinkedList<>();
RecyclerView mGuessLinesRecyclerView;
ButtonArrayListAdapter mButtonArrayListAdapter;
FloatingActionButton mFab;
// TODO: Rename and change types of parameters
public Game() {
// Required empty public constructor
}
public static Game newInstance(String param1, String param2) {
Game fragment = new Game();
return fragment;
}
private void initGameColors(){
mButtonsColors = new int[4];
int[] c = getContext().getResources().getIntArray(R.array.buttonColors);
//asign colors
for (int i = 0; i < 4; i++) {
this.mButtonsColors[i] = c[i];
}
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initGameColors();
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View vw = inflater.inflate(R.layout.fragment_game, container, false);
return vw;
}
#RequiresApi(api = Build.VERSION_CODES.M)
#Override
public void onViewCreated(#NonNull View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
mGuessLinesRecyclerView = view.findViewById(R.id.recycler_view);
mFab = view.findViewById(R.id.fab);
//initialize recyclerView
// Create an adapter and supply the data to be displayed.
mButtonArrayListAdapter = new ButtonArrayListAdapter(getContext(), mButtonArrayList, this);
// Connect the adapter with the RecyclerView.
mGuessLinesRecyclerView.setAdapter(mButtonArrayListAdapter);
// Give the RecyclerView a default layout manager.
mGuessLinesRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
//initializeFAB
mFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
mButtonArrayList.add(new ButtonArray(getContext(),mButtonsColors));
mGuessLinesRecyclerView.setAdapter(mButtonArrayListAdapter);
}
});
//add first array to the recycler view.
// Next guess lines will be added when clicking on movableFab
mButtonArrayList.add(new ButtonArray(getContext(), this.mButtonsColors));
}
}
The code of ButtonArrayListAdapter:
package com.examples.recyclerViewWithButtonArray;
import android.content.Context;
import android.graphics.drawable.ColorDrawable;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import java.util.ArrayList;
import java.util.List;
public class ButtonArrayListAdapter extends RecyclerView.Adapter<ButtonArrayListAdapter.ButtonArrayViewHolder> {
private final Context mContext;
private final List<ButtonArray> mData;
class ButtonArrayViewHolder extends RecyclerView.ViewHolder {
public ArrayList<Button> mButtons;
final ButtonArrayListAdapter mAdapter;
public ButtonArrayViewHolder(#NonNull View itemView, ButtonArrayListAdapter adapter) {
super(itemView);
this.mAdapter = adapter;
mButtons =new ArrayList<>();
if(4==4)
{
//create an array of button for binding
mButtons.add((Button)itemView.findViewById(R.id.button_Guess1));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess2));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess3));
mButtons.add((Button)itemView.findViewById(R.id.button_Guess4));
}
}
}
public ButtonArrayListAdapter(Context mContext, List<ButtonArray> mData, Game mGame) {
this.mContext = mContext;
this.mData = mData;
}
#NonNull
#Override
public ButtonArrayViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View layout;
layout = LayoutInflater.from(mContext).inflate(R.layout.guess_line,parent,false);
return new ButtonArrayViewHolder(layout,this);
}
#Override
public void onBindViewHolder(#NonNull final ButtonArrayViewHolder buttonArrayViewHolder, final int position) {
//bind data here
//initiate each guessLineButton
for (int i = 0; i < 4; i++) {
int c = mData.get(position).mAnswerButtonsColors[i];
final Button bt = buttonArrayViewHolder.mButtons.get(i);
//set initial button color
bt.setBackgroundColor(c);
//set button clik to open color chooser
bt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
int[] chooseColorButtons = new int[4];
// inflate the layout of the popup window
final View popupView = LayoutInflater.from(mContext).inflate(R.layout.choose_color_popup,null);
// create the popup window
int width = bt.getWidth();
int height = LinearLayout.LayoutParams.WRAP_CONTENT;
boolean focusable = true; // lets taps outside the popup also dismiss it
final PopupWindow popupWindow = new PopupWindow(popupView, width, height, focusable);
// show the popup window
// which view you pass in doesn't matter, it is only used for the window tolken
int[] loc = new int[]{0,0};
bt.getLocationOnScreen(loc);
popupWindow.showAtLocation(v, Gravity.TOP|Gravity.LEFT, loc[0], loc[1] + bt.getHeight());
// dismiss the popup window when touched
popupView.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View v, MotionEvent event) {
popupWindow.dismiss();
return true;
}
});
//initiate each color choose button
if(chooseColorButtons.length==4) {
chooseColorButtons[0] = R.id.buttonColor1;
chooseColorButtons[1] = R.id.buttonColor2;
chooseColorButtons[2] = R.id.buttonColor3;
chooseColorButtons[3] = R.id.buttonColor4;
}
for (int j = 0; j < 4 ; j++) {
Button colbt = (Button)(popupView.findViewById(chooseColorButtons[j]));
colbt.setBackgroundColor(Game.mButtonsColors[j]);
colbt.setTextColor(Game.mButtonsColors[j]);
colbt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
bt.setBackgroundColor(((ColorDrawable)(((Button)v).getBackground())).getColor());
//WHAT SHOULD I DO HERE?
popupWindow.dismiss();
}
});
}
}
});
}
}
#Override
public int getItemCount() {
return mData.size();
}
}
After reading your question what I get is you want to save the color against every button so next time when that button click the same color should load if yes then you can consider these tw0 suggestions
1- if the number of buttons is static and you are not adding them dynamically then you can hardcode the color against each button by adding them in the list and assign them manually against each button.
2- you can use key-value pair(hash map), these are the best solution for any case either you're are manually adding the button or dynamically, just store the color against each key. In this case, buttons should be your keys and colors will be value.
Thanku
Firstly I'm new to android and sorry for my english.
I have an application where I display images, in it I use a grid with image gallery.
Now I need to make a gallery of images with Gif, so I found this project. LINK
My project uses Fragmets I am trying to convert this project above in mine, however I am having problems in the call Activity.
The initial project activity looks like this:
package com.tenor.android.demo.search.activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.tenor.android.core.constant.StringConstant;
import com.tenor.android.core.model.impl.Tag;
import com.tenor.android.core.response.BaseError;
import com.tenor.android.core.util.AbstractUIUtils;
import com.tenor.android.core.widget.adapter.AbstractRVItem;
import com.tenor.android.demo.search.R;
import com.tenor.android.demo.search.adapter.TagsAdapter;
import com.tenor.android.demo.search.adapter.decorations.MainTagsItemDecoration;
import com.tenor.android.demo.search.adapter.rvitem.TagRVItem;
import com.tenor.android.demo.search.adapter.view.IMainView;
import com.tenor.android.demo.search.presenter.IMainPresenter;
import com.tenor.android.demo.search.presenter.impl.MainPresenter;
import com.tenor.android.demo.search.widget.TenorStaggeredGridLayoutManager;
import java.util.ArrayList;
import java.util.List;
/**
* For the MainActivity, we will display a search bar followed by a stream of Tags pulled from the Tenor API.
* Either by clicking on a tag or entering a search, SearchActivity will open.
*/
public class MainActivity extends AppCompatActivity implements IMainView{
// Number of columns for the RecyclerView
private static final int STAGGERED_GRID_LAYOUT_COLUMN_NUMBER = 2;
// Minimum length a search term can be
private static final int TEXT_QUERY_MIN_LENGTH = 2;
// A search box for entering a search term
public EditText mEditText;
// RecyclerView to display the stream of Tags
public RecyclerView mRecyclerView;
// Api calls for MainActivity performed here
private IMainPresenter mPresenter;
// Adapter containing the tag items/view holders
private TagsAdapter mTagsAdapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mEditText = (EditText) findViewById(R.id.am_et_search);
mEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView textView, int actionId, KeyEvent keyEvent) {
final String query = textView.getText().toString().trim();
if (query.length() < TEXT_QUERY_MIN_LENGTH) {
Toast.makeText(MainActivity.this, getString(R.string.search_error), Toast.LENGTH_LONG).show();
return true;
}
// The keyboard enter will perform the search
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
startSearch(query);
return true;
}
return false;
}
});
mRecyclerView = (RecyclerView) findViewById(R.id.am_rv_tags);
mRecyclerView.addItemDecoration(new MainTagsItemDecoration(getContext(), AbstractUIUtils.dpToPx(this, 2)));
// Two column, vertical display
final TenorStaggeredGridLayoutManager layoutManager = new TenorStaggeredGridLayoutManager(STAGGERED_GRID_LAYOUT_COLUMN_NUMBER,
StaggeredGridLayoutManager.VERTICAL);
mRecyclerView.setLayoutManager(layoutManager);
mTagsAdapter = new TagsAdapter<>(this);
mRecyclerView.setAdapter(mTagsAdapter);
mPresenter = new MainPresenter(this);
mPresenter.getTags(getContext(), null);
}
private void startSearch(#Nullable final CharSequence text) {
final String query = !TextUtils.isEmpty(text) ? text.toString().trim() : StringConstant.EMPTY;
Intent intent = new Intent(this, SearchActivity.class);
intent.putExtra(SearchActivity.KEY_QUERY, query);
startActivity(intent);
}
#Override
public Context getContext() {
return getBaseContext();
}
#Override
public void onReceiveReactionsSucceeded(List<Tag> tags) {
// Map the tags into a list of TagRVItem for the mTagsAdapter
List<AbstractRVItem> list = new ArrayList<>();
for (Tag tag : tags) {
list.add(new TagRVItem(TagsAdapter.TYPE_REACTION_ITEM, tag));
}
mTagsAdapter.insert(list, false);
}
#Override
public void onReceiveReactionsFailed(BaseError error) {
// For now, we will just display nothing if the tags fail to return
}
}
Here my first change:
Note that I changed the class name to not conflict with my MainActivity
public class MainActivityGif extends Fragment implements IMainView {
And here
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
//setContentView(R.layout.activity_main_gif);
View view = inflater.inflate(R.layout.activity_main_gif, container, false);
How can I call a fragment within another fragment?
private void startSearch(#Nullable final CharSequence text) {
final String query = !TextUtils.isEmpty(text) ? text.toString().trim() : StringConstant.EMPTY;
Intent intent = new Intent(getActivity(), SearchActivity.class);
intent.putExtra(SearchActivity.KEY_QUERY, query);
MainActivityGif.this.startActivity(intent);
}
If I miss the way to ask, I'm sorry, let me understand where I went wrong.
private FragmentManager mFragmentManager;
private FragmentTransaction mFragmentTransaction;
and inside your onCreate
mFragmentManager = getSupportFragmentManager();
mFragmentTransaction = mFragmentManager.beginTransaction();
and on click call :
FragmentB fragment = new FragmentB ();
mFragmentTransaction = mFragmentManager.beginTransaction();
mFragmentTransaction.replace(R.id.contentFragment, fragment );
mFragmentTransaction.commit();
I want to add a button for each item in the Firebase recycler view.
I've created the button, it's being showed, and i'm receiving the Toast when I press it.
But - How can I get the relevant item on it's list ?
For example - When I press the 'DELETE' I want to delete that certain mission 'aspodm'. (Sorry for the large picture, how do I make it smaller?)
This is how the database looks like (vfPvsk... is the user id, and 773f... is random uuid for mission id):
And that is the code of the relevant fragment. (The Toast when clicking the button is activated - I just don't know how to get to the relevant mission in order to delete it)
package com.airpal.yonatan.airpal;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.firebase.ui.database.FirebaseRecyclerAdapter;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
/**
* A simple {#link Fragment} subclass.
*/
public class PendingFragment_User extends Fragment {
private String TAG = "dDEBUG";
private RecyclerView mPendingList;
private DatabaseReference mMissionsDb;
private FirebaseAuth mAuth;
private String mCurrent_user_id;
private View mMainView;
Query queries;
public PendingFragment_User() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
mMainView = inflater.inflate(R.layout.fragment_pending_user, container, false);
mPendingList = (RecyclerView)mMainView.findViewById(R.id.pending_recycler_user);
mAuth = FirebaseAuth.getInstance();
mCurrent_user_id = mAuth.getCurrentUser().getUid();
mMissionsDb = FirebaseDatabase.getInstance().getReference().child("Missions").child(mCurrent_user_id);
queries = mMissionsDb.orderByChild("status").equalTo("Available");
mMissionsDb.keepSynced(true);
mPendingList.setHasFixedSize(true);
mPendingList.setLayoutManager(new LinearLayoutManager(getContext()));
// Inflate the layout for this fragment
return mMainView;
}
#Override
public void onStart() {
super.onStart();
FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder> firebaseMissionsUserRecyclerAdapter = new FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder>(
Mission.class,
R.layout.missions_single_layout,
PendingFragment_User.MissionsViewHolder.class,
queries
) {
#Override
protected void populateViewHolder(PendingFragment_User.MissionsViewHolder missionViewHolder, final Mission missionModel, int missionPosition) {
// Log.d(TAG, "inside populateViewHolder" + missionModel.getType() + " , " + missionModel.getDescription());
missionViewHolder.setMissionName(missionModel.getType());
missionViewHolder.setMissionDescription(missionModel.getDescription());
missionViewHolder.setMissionStatus(missionModel.getStatus());
missionViewHolder.button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Toast.makeText(view.getContext(), "esto es un boton"+ view.getNextFocusUpId(), Toast.LENGTH_SHORT).show();
Log.d(TAG,"The button was pressed");
}
});
}
};
mPendingList.setAdapter(firebaseMissionsUserRecyclerAdapter);
}
public static class MissionsViewHolder extends RecyclerView.ViewHolder {
View mView;
Button button ;
public MissionsViewHolder(View itemView) {
super(itemView);
mView = itemView;
button = (Button)mView.findViewById(R.id.pending_single_button);
}
public void setMissionName(String name){
TextView mMissionNameView = mView.findViewById(R.id.mission_single_name);
mMissionNameView.setText(name);
}
public void setMissionStatus(String status){
TextView mMissionStatusView = mView.findViewById(R.id.mission_single_status);
mMissionStatusView.setText(status);
if (status.equals("Available")){
mMissionStatusView.setTextColor(Color.parseColor("#008000"));;
} else {
mMissionStatusView.setTextColor(Color.parseColor("#FF0000"));;
}
}
public void setMissionDescription(String description){
TextView mMissionDescriptionView = mView.findViewById(R.id.mission_single_description);
mMissionDescriptionView.setText(description);
}
}
}
Try using a subclass rather than anonymous one. Then, you'll be able to access the getItem(int position) method of the adapter. Something along the lines of:
private class MissionAdapter extends FirebaseRecyclerAdapter<Mission, PendingFragment_User.MissionsViewHolder> {
public MissionAdapter(Query queries){
super(Mission.class, R.layout.missions_single_layout, PendingFragment_User.MissionsViewHolder.class, queries);
}
#Override
protected void populateViewHolder(PendingFragment_User.MissionsViewHolder missionViewHolder, final Mission missionModel, final int missionPosition) {
Log.d(TAG, "inside populateViewHolder" + missionModel.getType() + " , " + missionModel.getDescription());
missionViewHolder.setMissionName(missionModel.getType());
missionViewHolder.setMissionDescription(missionModel.getDescription());
missionViewHolder.setMissionStatus(missionModel.getStatus());
missionViewHolder.button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Mission clickedMission = MissionAdapter.this.getItem(missionPosition);
if (clickedMission != null){ // for the sake of being extra-safe
Log.d(TAG,"The button was pressed for mission: " + clickedMission.getType());
}
}
});
}
}
I made it print a log, but you should be able to do anything you want with the retrieved Mission object in there.
I have fragment view pager in activity, that creates a number of pages of entered number before. In each fragment, i have recycler view that needs to update each time user moves to the relevant page. on resume() of each fragment I have getter of data from main activity.
What I am experiencing is while I'm going to next page first time it's not updated, but if after some page movements I would back to it, it is updated, with same resume() code.
I tried some delays after updating the data, it didn't help.
So if before updating data I would check every page it would work as I planned, but if the page was not created before (due to pager adapter) but I still use the same code for updating, it does not work.
I would be glad for some help, stacked on it for 2 days already.
Main Activity:
package com.slavafleer.tipcalculator02;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import com.slavafleer.tipcalculator02.recycler.PageHeaderAdapter;
import java.util.ArrayList;
public class ManualModeActivity extends AppCompatActivity implements
PageHeaderAdapter.Callbacks, DinerFragment.Callbacks {
private int mDinersAmount;
private ViewPager mViewPagerDiners;
private PageHeaderAdapter mHeaderAdapter;
private DinersPagerAdapter mDinersPagerAdapter;
private ArrayList<Order> mOrders;
public ArrayList<Order> getOrders() {
return mOrders;
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_manual_mode);
mOrders = new ArrayList<>();
// Get diners amount from previous activity
Intent intent = getIntent();
mDinersAmount = intent.getIntExtra(Constants.KEY_DINNERS_AMOUNT, 1);
// Initialise PageHeader Recycler
mHeaderAdapter = new PageHeaderAdapter(this, mDinersAmount, this);
final RecyclerView recyclerPageHeader = (RecyclerView) findViewById(R.id.recyclerViewPagerHeader);
final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
recyclerPageHeader.setLayoutManager(linearLayoutManager);
recyclerPageHeader.setAdapter(mHeaderAdapter);
// Initialise ViewPager
mViewPagerDiners = (ViewPager) findViewById(R.id.viewPagerDiners);
FragmentManager fragmentManager = getSupportFragmentManager();
mDinersPagerAdapter = new DinersPagerAdapter(fragmentManager, mDinersAmount);
mViewPagerDiners.setAdapter(mDinersPagerAdapter);
// ViewPager Listener - synchronise with headers recycler
mViewPagerDiners.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
// Gets position for selected page
#Override
public void onPageSelected(int position) {
mHeaderAdapter.selectItem(position);
linearLayoutManager.smoothScrollToPosition(recyclerPageHeader, null,position);
}
#Override
public void onPageScrollStateChanged(int state) {
}
});
}
// HeaderPage Adapter Callbacks
// Scroll ViewPager by clicked Header
#Override
public void onItemClick(int position) {
mViewPagerDiners.setCurrentItem(position, true);
}
// DinerFragment.OrderDialog.Callbacks
// Send data to PagerAdapter that would sent to each fragment
#Override
public void onDialogAddClick(Order order) {
Log.d("test", "onDialogAddClick");
mOrders.add(order);
mDinersPagerAdapter.updateOrders();
}
}
PagerAdapter
package com.slavafleer.tipcalculator02;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import java.util.ArrayList;
/**
* PagerAdapter for ManualModeActivity ViewPager
*/
public class DinersPagerAdapter extends FragmentPagerAdapter {
private int mDinersAmount;
private ArrayList<DinerFragment> mDinerFragments;
public DinersPagerAdapter(FragmentManager fm, int dinersAmount) {
super(fm);
mDinersAmount = dinersAmount;
mDinerFragments = new ArrayList<>();
}
#Override
public Fragment getItem(int position) {
// Insert diners amount to fragment
Bundle bundle = new Bundle();
bundle.putInt(Constants.KEY_DINNERS_AMOUNT, mDinersAmount);
bundle.putInt(Constants.KEY_CURRENT_PAGE, position);
DinerFragment dinerFragment = new DinerFragment();
dinerFragment.setArguments(bundle);
mDinerFragments.add(dinerFragment); // save fragments references
return dinerFragment;
}
// Diners amount + All
#Override
public int getCount() {
return mDinersAmount + 1;
}
// Update order list in each fragment of view pager
public void updateOrders() {
for(DinerFragment dinerFragment : mDinerFragments) {
dinerFragment.onResume();
}
}
}
Fragment
package com.slavafleer.tipcalculator02;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import com.slavafleer.tipcalculator02.recycler.OrdersAdapter;
import java.util.ArrayList;
/**
* Diner Fragment Class
*/
public class DinerFragment extends Fragment implements OrderDialog.Callbacks {
private ArrayList<Order> mOrders = new ArrayList<>();
private RecyclerView mRecyclerViewOrders;
private ImageView mImageViewAddOrderButton;
private int mDinersAmount;
private OrdersAdapter mOrdersAdapter;
private int mDinerId;
private Callbacks mCallbacks;
public DinerFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d("test", "onCreateView");
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_diner, container, false);
mCallbacks = (Callbacks) inflater.getContext();
// Get Diners Amount
final Bundle bundle = getArguments();
if(bundle != null) {
mDinersAmount = bundle.getInt(Constants.KEY_DINNERS_AMOUNT);
mDinerId = bundle.getInt(Constants.KEY_CURRENT_PAGE);
Log.d("test", "onCreateView " + mDinerId);
}
mRecyclerViewOrders = (RecyclerView) view.findViewById(R.id.recyclerViewOrders);
mOrdersAdapter = new OrdersAdapter(getActivity(), mOrders);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerViewOrders.setLayoutManager(linearLayoutManager);
mRecyclerViewOrders.setAdapter(mOrdersAdapter);
// Due to the bug, we could use just listener and not OnClick in Fragment
mImageViewAddOrderButton = (ImageView) view.findViewById(R.id.imageViewAddButton);
mImageViewAddOrderButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
ArrayList<Integer> currentPage = new ArrayList<>();
currentPage.add(mDinerId);
OrderDialog orderDialog = new OrderDialog(getActivity(),
mDinersAmount, currentPage, DinerFragment.this);
orderDialog.show();
}
});
return view;
}
#Override
public void onResume() {
super.onResume();
Log.d("test", "onResume " + mDinerId);
ManualModeActivity activity = (ManualModeActivity) getActivity();
mOrders = activity.getOrders();
for(Order order : mOrders) {
Log.d("test", order.getPrice() + "");
}
int size = mOrders.size();
mOrdersAdapter.notifyDataSetChanged();
mRecyclerViewOrders.smoothScrollToPosition(size);
}
// Blank OrderDialog.Callbacks
// used due to Implements for creation OrderDialog
#Override
public void onDialogAddClick(Order order) {
mCallbacks.onDialogAddClick(order);
}
public interface Callbacks {
void onDialogAddClick(Order order);
}
}
Instead of using onResume use the onPageSelected method and used the passed fragment for context to call the updating method in the fragment.
Finally what I did is replacing mOrdersAdapter.notifyDataSetChanged() on recreating the adapter. I understand that is not a very smart solution but visually it does work as I needed.
I would not mark it as answer cause I still want to know why it acts like I wrote before.
Thanks again.
// mOrdersAdapter.notifyDataSetChanged();
mOrdersAdapter = new OrdersAdapter(getActivity(), mOrders);
mRecyclerViewOrders.setAdapter(mOrdersAdapter);
ViewPager adapter creates 2 fragments at the same time. for instance when you're on page 0, it also creates page 1(lifecycle for page 1: OnCreate->OnCreateView->OnResume->OnPause->OnResume).When you swipe to page 1 only method that is being called is SetMenuVisibility. So in order to update data for page 1 is to call setMenuVisibilty inside of Fragment:
#Override
public void setMenuVisibility(boolean menuVisible) {
super.setMenuVisibility(menuVisible);
if(menuVisible && isResumed()){
settingAdapter();
}
}
So here inside of settingAdapter i reloaded data.
so far,it's the best trick i made toward fragments with recyclerviews inside viewpager. But still there are few milliseconds delay for populating fragment with new data)))
I hope this will help you
I'm Getting data from my database and pushing them into ListView to view all the data.
Inside my ListView I also have a TextView with the text "Like" in it. Now when I click the like text it will change to "Liked" and I'm updating my like status in my database.
Now my problem is that when i click the "Like" text, the text changes to "Liked" and also it is updated in DB. But also when I scroll through the List View, I can notice other lists' Like text is also changed to Liked. I'm not sure what's going wrong.
I've been trying to get around this problem for quite some days but had no success.
This is my adapter code. At the bottom you can see my onClickListener for the textview
package com.mytestapp.myapp;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class ForumAdapter extends ArrayAdapter<DiscussionList> {
private static List<DiscussionList> items = null;
public ForumAdapter(Context context, List<DiscussionList> items) {
super(context, R.layout.custom_list, items);
this.items = items;
}
#Override
public int getCount() {
return items.size();
}
public static DiscussionList getModelPosition(int position) {
return items.get(position);
}
public void refill(List<DiscussionList> items) {
items.clear();
items.addAll(items);
notifyDataSetChanged();
}
public static class ViewHolder {
WebView mywebviewholder;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
View v = convertView;
if (v == null) {
LayoutInflater li = LayoutInflater.from(getContext());
v = li.inflate(R.layout.custom_list, null);
} else {
holder = (ViewHolder) convertView.getTag();
}
DiscussionList app = items.get(position);
if (app != null) {
TextView titleText = (TextView) v.findViewById(R.id.dscTitle);
TextView categoryText = (TextView) v.findViewById(R.id.dscCategory);
TextView descriptionText = (TextView) v
.findViewById(R.id.dscDescription);
TextView timeText = (TextView) v.findViewById(R.id.dscTime);
TextView idText = (TextView) v.findViewById(R.id.dscDiscId);
final TextView likeText = (TextView) v.findViewById(R.id.likeText1);
String like_Status = app.getLikeStatus();
titleText.setText(app.getTitle());
categoryText.setText(app.getCategory());
descriptionText.setText(app.getDescription());
timeText.setText(app.getTime());
idText.setText(app.getDiscId());
if (like_Status == "null") {
likeText.setText("Like");
} else {
likeText.setText("Liked");
}
final String dId = app.getDiscId();
// onClick for image button inside list view
likeText.setTag(new Integer(position));
likeText.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
final Integer myposition = (Integer) view.getTag();
// Toast.makeText(getContext(), "" + dId,
// Toast.LENGTH_SHORT)
// .show();
likeText.setText("Liked");
MainActivity val = new MainActivity();
val.updateLikeTable(dId);
}
});
}
return v;
}
}
And also this is my MainActivity.java file where i update the likes in database
package com.mytestapp.myapp;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ImageButton;
import android.widget.ListView;
import android.widget.Toast;
public class MainActivity extends ListActivity implements FetchDataListener {
public static String strTitle = "0", strCategory = "0",
strDescription = "0", strTime = "0", strDid = "0";
Collegemate_DB db = new Collegemate_DB(this);
int likeStatus = 1;
private ProgressDialog dialog;
public static String usId=null;
ImageButton imgButton;
List<DiscussionList> items = new ArrayList<DiscussionList>();
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_forum_topics);
usId = db.getCurrentuserId();
initView();
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
}
/*
* On click listener to get values from DiscussionList class and send it
* to another activity when clicking on the list item
*/
ListView forumList = getListView();
forumList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// Get position of the clicked list item from adapter
String dTitle, dCategory, dDescription, dTime, dDid;
DiscussionList accessVar = ForumAdapter
.getModelPosition(position);
dTitle = accessVar.getTitle();
dCategory = accessVar.getCategory();
dDescription = accessVar.getDescription();
dTime = accessVar.getTime();
dDid = accessVar.getDiscId();
/*
* Storing the forum values in string and passing it to another
* activity
*/
String values[] = { dTitle, dCategory, dDescription, dTime,
dDid };
Intent i = new Intent(MainActivity.this, ForumFullView.class);
i.putExtra("sendData", values);
startActivity(i);
}
});
}
private void initView() {
// show progress dialog
Log.i("j","Inside Init");
dialog = ProgressDialog.show(this, "", "Loading...");
String url = "http://example.com/mypath/listData.php?currentUser_id="
+ usId;
Log.i("Fetch Url : ", url);
FetchDataTask task = new FetchDataTask(this);
task.execute(url);
}
#Override
public void onFetchComplete(List<DiscussionList> data) {
// dismiss the progress dialog
if (dialog != null)
dialog.dismiss();
// create new adapter
ListView forumList = getListView();
// set the adapter to list
ForumAdapter adapter = new ForumAdapter(this, data);
if (forumList.getAdapter() == null) {
//final ForumAdapter adapter = new ForumAdapter(this, data);
forumList.setAdapter(adapter);
} else {
((ForumAdapter) forumList.getAdapter()).refill(items);
}
// setListAdapter(adapter);
}
#Override
public void onFetchFailure(String msg) {
// dismiss the progress dialog
if (dialog != null)
dialog.dismiss();
// show failure message
Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
}
public void updateLikeTable(String dId,List<DiscussionList> items) {
try {
String likeUrl = "http://example.com/mypath/createlike.php?discId="
+ dId + "&userId=" + usId + "&like_status=" + likeStatus;
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet();
request.setURI(new URI(likeUrl));
client.execute(request);
} catch (Exception e) {
e.printStackTrace();
}
}
}
Any help is appreciated.
Thanks in advance
The problem you're having is that the ListView widget recycles its views if it can. Once a view is off the screen from scrolling, it goes onto a garbage heap so that when a new view scrolls into place it can be reused, rather than requiring a fresh one to be inflated from scratch. That recycled view is the convertView parameter in the getView() method. When your ListView is first populating, convertView will always be null, since the garbage pile has nothing in it, so you're forced to inflate new views, but subsequent calls will likely have that parameter as non-null.
The practical result of this is that when a clicked view that's been set to "Liked" gets recycled, the TextView is still there and still populated with "Liked" rather than the presumed default of "Like". So if you click a view, then scroll down so it goes off the screen, it'll come back around and cause the bug you're seeing.
What you'll probably want to do to fix this is to set the text of likeText within getView() every time, based on what it is in your database. If the post has been liked, set it to "Liked", and if it hasn't, set it to "Like". It should just be one more line, assuming you have easy access to whether or not the post is liked from your DiscussionList object.
P.S. As a side note, hard-coded strings are typically frowned upon in Android, so you may want to move your "Liked" string into the resource files. It's not really necessary unless you're planning to do translations, but it's still good practice.